HIGHSPIRE, PA — Are the terms “state-of-the-art” and “value engineered” compatible in today's world of hvac design? Gannett Fleming Inc., a consulting engineering and construction management firm in ...
In 1948, research by R.G. Huebscher established flow resistance for different shapes of ductwork at equal velocities, which allowed the creation of the duct-sizing calculator or “Ductulator” for ...
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